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Dai S, Li W, Xu R, Wang X, Li Q, Dou M, Li J. Label-Free Fluorescence Quantitative Detection Platform on Plasmonic Silica Photonic Crystal Microsphere Array. Anal Chem 2022; 94:17939-17946. [PMID: 36519631 DOI: 10.1021/acs.analchem.2c04000] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We have demonstrated the proof-of-concept of a label-free fluorescence quantitative detection platform based on gold nanoparticle (AuNP) enhancement intrinsic fluorescence of protein on the silica photonic crystal microsphere (SPCM) array. The label-free one-step competitive fluorescence immunoassay protocol has been proposed on the surface of the SPCM. Aflatoxin B1 (AFB1) as a model molecule was detected by the newly established method. AFB1-bovine serum albumin and monoclonal antibodies (Abs) of anti-AFB1 have been immobilized on the surfaces of SPCMs and AuNPs, respectively. AuNPs remarkably enhanced the intrinsic fluorescence of artificial antigens on the surface of the SPCM at near UV excitation. The simulation of electric field distribution showed that the maximum value of the near-field enhancement |E/E0| of the SPCM with AuNPs could reach 20. The label-free fluorescence enhancement effect comes from the synergistic effects of photonic crystal effect and AuNP plasmon effect. Such a label-free fluorescence detection method can provide a linear detection range from 0.1 to 10 ng/mL with a limit of detection of 0.025 ng/mL and good specificity for AFB1. The recovery rates in the spiked cereal samples were measured in the range of 84.07 ± 5.71%-101.02 ± 5.13%, which were consistent with that of the traditional enzyme linked immunosorbent assay method. The label-free detection platform displays great application potential in biology, medicine, agriculture, food industry, chemical industry, energy source, and environmental protection.
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Affiliation(s)
- Shijie Dai
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing210023, China
| | - Wei Li
- Medical Imaging Center, the First Affiliated Hospital, Jinan University, Guangzhou, Guangdong510627China
| | - Ruimin Xu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing210023, China
| | - Xin Wang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing210023, China
| | - Qianjin Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing210023, China
| | - Menghua Dou
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing210023, China
| | - Jianlin Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing210023, China
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Xia Y, Li J, Huang LX, Hua B, Guo SS. In Situ Microreaction Platform Based on Acoustic Droplet Manipulation for Ultra-High-Precision Multiplex Bioassay. Anal Chem 2022; 94:6347-6354. [DOI: 10.1021/acs.analchem.2c00698] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu Xia
- Key Laboratory of Artificial Micro/Nano-Structures, Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Juan Li
- Key Laboratory of Artificial Micro/Nano-Structures, Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Lan-Xiang Huang
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University Wuhan 430072, China
| | - Bo Hua
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Shi-Shang Guo
- Key Laboratory of Artificial Micro/Nano-Structures, Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
- Hubei Yangtze Memory Laboratories, Wuhan 430072, China
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Xu YJ, Su MM, Li HL, Liu QX, Xu C, Yang YS, Zhu HL. A fluorescent sensor for discrimination of HSA from BSA through selectivity evolution. Anal Chim Acta 2018; 1043:123-131. [DOI: 10.1016/j.aca.2018.09.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/03/2018] [Accepted: 09/05/2018] [Indexed: 01/20/2023]
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Han H, Lee JS, Kim H, Shin S, Lee J, Kim J, Hou X, Cho SW, Seo J, Lee T. Single-Droplet Multiplex Bioassay on a Robust and Stretchable Extreme Wetting Substrate through Vacuum-Based Droplet Manipulation. ACS NANO 2018; 12:932-941. [PMID: 29262253 DOI: 10.1021/acsnano.7b05826] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Herein, a droplet manipulation system with a superamphiphobic (SPO)-superamphiphilic (SPI) patterned polydimethylsiloxane (PDMS) substrate is developed for a multiplex bioassay from single-droplet samples. The SPO substrate is fabricated by sequential spraying of adhesive and fluorinated silica nanoparticles onto a PDMS substrate. It is subsequently subjected to oxygen plasma with a patterned mask to form SPI patterns. The SPO layer exhibits extreme liquid repellency with a high contact angle (>150°) toward low surface tension and viscous biofluidic droplets (e.g., ethylene glycol, blood, dimethyl sulfoxide, and alginate hydrogel). In contrast, the SPI exhibits liquid adhesion with a near zero contact angle. Using the droplet manipulation system, various liquid droplets can be precisely manipulated and dispensed onto the predefined SPI patterns on the SPO PDMS substrate. This system enables a multiplex colorimetric bioassay, capable of detecting multiple analytes, including glucose, uric acid, and lactate, from a single sample droplet. In addition, the detection of glucose concentrations in a plasma droplet of diabetic and healthy mice are performed to demonstrate the feasibility of the proposed system for efficient clinical diagnostic applications.
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Affiliation(s)
| | | | | | | | | | - Jongchan Kim
- Department of Electrical Engineering and Computer Science, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Xu Hou
- College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials, and State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University , Xiamen 361005, China
| | | | - Jungmok Seo
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST) , Seoul 02792, Republic of Korea
- Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology (UST) , Seoul 02792, Republic of Korea
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Microfluidic chip-based silver nanoparticles aptasensor for colorimetric detection of thrombin. Talanta 2015; 150:81-7. [PMID: 26838384 DOI: 10.1016/j.talanta.2015.09.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 09/03/2015] [Accepted: 09/06/2015] [Indexed: 12/21/2022]
Abstract
In this paper, a colorimetric silver nanoparticles aptasensor (aptamer-AgNPs) was developed for simple and straightforward detection of protein in microfluidic chip. Surface-functionalized microfluidic channels were employed as the capture platform. Then the mixture of target protein and aptamer-AgNPs were injected into the microfluidic channels for colorimetric detection. To demonstrate the performance of this detection platform, thrombin was chosen as a model target protein. Introduction of thrombin could form a sandwich-type complex involving immobilized AgNPs. The amount of aptamer-AgNPs on the complex augmented along with the increase of the thrombin concentration causing different color change that can be analyzed both by naked eyes and a flatbed scanner. This method is featured with low sample consumption, simple processes of microfluidic platform and straightforward colorimetric detection with aptamer-AgNPs. Thrombin at concentrations as low as 20pM can be detected using this aptasensor without signal amplification. This work demonstrated that it had good selectivity over other proteins and it could be a useful strategy to detect other targets with two affinity binding sites for ligands as well.
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Wang X, Li W, Li Z, Li H, Xu D. A highly sensitive fluorescence turn-on platform with silver nanoparticles aptasening for human platelet-derived growth factor-BB. Talanta 2015; 144:1273-8. [PMID: 26452958 DOI: 10.1016/j.talanta.2015.07.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 06/29/2015] [Accepted: 07/06/2015] [Indexed: 12/22/2022]
Abstract
In this paper, we demonstrated a simple and highly sensitive fluorescence platform for protein detection. Silver nanoparticles (AgNPs) worked as carriers and quenchers for FAM labeled aptamers (FAM-apt). Biotin labeled aptamers (Bio-apt), FAM-apt functionalized AgNPs (Ag-FAM-apt), and a target protein, human platelet-derived growth factor-BB (PDGF-BB) could form a sandwich-type complex. Once the etching solvents were added, AgNPs were dissolved and the fluorescence resonance energy transfer (FRET) between AgNPs and FAM was broken. FAM-apt were no longer quenched and released into the solution in the 96-well microplates, so the fluorescence signal would turn from "off" state to "on" state. This method had possessed several advantages: Firstly, increased specificity which was contributed by the sandwich binding of aptamers; Secondly, quenching ability of AgNPs which was utilized to make signal turn-on; Thirdly, high throughout in which 96 samples could be detected simultaneously. The results showed a linear relationship between fluorescence intensity and PDGF-BB concentration (10 ng mL(-1)-100 ng mL(-1)), and the detection limit was 7 ng mL(-1). This simple and sensitive method would have a promising future for development and application.
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Affiliation(s)
- Xi Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China
| | - Wei Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China
| | - Zhonghui Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China
| | - Hui Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China.
| | - Danke Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou Road, Nanjing 210093, China.
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Yin Y, Sun Y, Yu M, Liu X, Jiang T, Yang B, Liu D, Liu S, Cao W. ZnO nanorod array grown on Ag layer: a highly efficient fluorescence enhancement platform. Sci Rep 2015; 5:8152. [PMID: 25633246 PMCID: PMC4311235 DOI: 10.1038/srep08152] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 12/24/2014] [Indexed: 02/07/2023] Open
Abstract
ZnO nanorods (NRs) are known for ultra-sensitive biomolecule detection through fluorescence enhancement. In this work, we demonstrate that ZnO NR arrays grown on Ag layers can significantly improve the enhancement up to 86 times compared to that grown on bare Si, and the enhancement can be modified in a controlled manner by varying Ag thickness. The much improved waveguide properties are attributed to the high reflectance of the Ag layers and their tuning effect on the diameters of ZnO NRs. Our results provide a deep insight into the mechanism of NRs-based fluorescence enhancement platform.
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Affiliation(s)
- Yongqi Yin
- Condensed Matter Science and Technology Institute, School of Science, Harbin Institute of Technology, Harbin 150080, China
| | - Ye Sun
- Condensed Matter Science and Technology Institute, School of Science, Harbin Institute of Technology, Harbin 150080, China
| | - Miao Yu
- State Key Laboratory of Urban Water Resource and Environment, School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China
| | - Xiao Liu
- Condensed Matter Science and Technology Institute, School of Science, Harbin Institute of Technology, Harbin 150080, China
| | - Tingting Jiang
- State Key Laboratory of Urban Water Resource and Environment, School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China
| | - Bin Yang
- Condensed Matter Science and Technology Institute, School of Science, Harbin Institute of Technology, Harbin 150080, China
| | - Danqing Liu
- Key Laboratory of Microsystems and Microstructures Manufacturing, Harbin Institute of Technology, Harbin 150080, China
| | - Shaoqin Liu
- Key Laboratory of Microsystems and Microstructures Manufacturing, Harbin Institute of Technology, Harbin 150080, China
| | - Wenwu Cao
- 1] Condensed Matter Science and Technology Institute, School of Science, Harbin Institute of Technology, Harbin 150080, China [2] Department of Mathematics and Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
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Mi FL, Wu SJ, Zhong WQ, Huang CY. Preparation of a silver nanoparticle-based dual-functional sensor using a complexation–reduction method. Phys Chem Chem Phys 2015; 17:21243-53. [DOI: 10.1039/c4cp05012f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A dual-functional sensor based on silver nanoparticles was synthesized by a two-stage procedure consisting of a low-temperature chitosan–Ag+ complexation followed by a high-temperature reduction of the complex to form chitosan-capped silver nanoparticles (CS-capped Ag NPs).
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Affiliation(s)
- Fwu-Long Mi
- Department of Biochemistry and Molecular Cell Biology
- School of Medicine
- Taipei Medical University
- Taipei 110
- Taiwan
| | - Shao-Jung Wu
- Department of Chemical Engineering
- Ming Chi University of Technology
- New Taipei City 243
- Taiwan
| | - Wen-Qi Zhong
- Department of Chemical Engineering
- Ming Chi University of Technology
- New Taipei City 243
- Taiwan
| | - Cheng-Yu Huang
- Department of Chemical Engineering
- Ming Chi University of Technology
- New Taipei City 243
- Taiwan
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